OC5267B is a continuous inductor current on-mode step-down LED constant current driver used to drive one or more LED strings. OC5267B operates from 4.8V to 65V and provides adjustable output current up to 800mA. Depending on the input voltage and external components, the OC5267B can drive LEDs up to several watts.
OC5267B Built-in power switch with high-end current-sense circuitry, and dimming foot DIM compatible with PWM and analog dimming. When the DIM pin voltage is lower than 0.3v, the output is turned off and enters the standby state.
OC5267B Built-in over-temperature protection circuit, when the chip reaches the over-temperature protection point and enters the over-temperature protection mode, the output current gradually decreases to improve system reliability.
OC5267B The patented circuit architecture enables the output current to operate without overshoot at low dropout voltage, improving the working life of the LED, OC5267B The patented constant current circuit has excellent load regulation and linear regulation.
OC5267B is available in a SOT23-5 package.
Fields of application
LED backup lights, signal lights
Low-voltage LED spotlights instead of halogen lamps
Automotive lighting